Car-door



' ATTORNEYS Patented May 9, 1893.

' N. ROY;

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. UNITED STATES PATENT OFFICE.

NAPOLEON ROY, OF DULUTH, MlNNESOTA.

CAR-DOOR.

SPECIFICATION forming part of Letters Patent No. 497,218, dated May 9,1893.

Application nativit '7, 1892.

To all whom it mag concern.-

Be it known that I, NAPOLEON ROY, residing at Duluth, in the county ofSt. Louis and State of Minnesota, have invented certain new and usefulImprovements in Oar-Doors, of which the following is a specification.

My invention relates more especially to inside doors for grain cars, andtheir fastenin gs, and it has for its object to provide a car door ofthis character, which can be easilymanipulated and operated without thenecessity of using crow bars and the like.

It has also for its object to construct such a door whose attachmentsfor fastening and holding the same in place will not interfere with theuse or capacity of the car for transporting coal or other freight.

With these and other minor objects in view and which will hereinafter bereferred to my invention consists in the peculiar arrangement and novelcombination of parts all of which will hereinafter be fully described inthe specification and particularlypointed out in the claims, referencebeing had to the accompanying drawings, in which- Figure 1 is a frontview of a portion of the car with my improvements applied and disposedin their lower or locked position. Fig. 2 is a rear view of the door(elevated) and the adjacent frame work of the car. Fig. 3 is a verticalsection of, the same on the line 3-3, Fig. 1. Fig. 4 is a horizontalsection on the line 1-4, Fig. 1, and Fig. 5 is a detail view of thelocking catch.

Referring to the accompanying drawings, A indicates a portion of the carbody, and B, the usual door opening, which in the present instance has ametallic base strip 0 at its lower inner edge and side metallic plates DD which form guide ways for the sliding door, for a purpose presentlydescribed.

E indicates the sliding door which is pivotally supported by the loops6, upon a transverse bar F, the ends of which are formed integral withor have secured thereto the cuff members or sleeves f, held to slideupon vertical rods Gr G, upon the inside of the car frame, one on eachside of the car opening B, as most clearly shown in Fig. 2 of the drawms.

' lo one side of the door opening is j ournaled $e1ia1No.4=82,204. (Nomodel.)

a drum H, the shaft h of which extends to the outside of the car bodyand has a hand wheel h, and a ratchet wheel h with which engages agravity pawl if, as shown.

A tube J is projected up from the casing H, in which the drum H islocated and forms a guard for the lifting chain K which is secured tothe drum at one end, passes up over guide pulleys K K, the free endpassing down and connected to the upper end of the door E.

Upon the upper front edge of the door at each end are secured upwardlyand outwardly curved arms L L, which are adapted to en gage (when thedoor is raised in the manner presently described) downwardly projectingroller brackets M M, in the top of the door opening.

By the aforesaid construction and arrangement of parts, it will benoticed that-,when the door is in its lowered position, it can bequickly raised to the desired height by operating the hand wheel 71.which winds up the chain and draws the door vertically upward. After thedoor has been elevated to the position shown in Fig. 2 and full linesFig. 3 it can beswung up out of the way as indicated in dotted linesFig. 3 to admit of a clear way through the opening B. This is effectedby further winding up the chain. This operation. serves to further drawthe door upward the arms L of which then engage the stops M and serve asthe bar F continues in its upward movement to tilt or rock the door uponits pivot or hinge connections and swing it up to the approximatelyhorizontal position shown in dotted lines in Fig. 3.

As a simple and effective means for lock ing the door to its down orclosed position, I employ the devices most clearly shown in Figs. 1 and4, which consist of a pivoted unlocking lever arm N, pivoted near itscenter upon a plate at mounted centrally on the front face of the door,the long member n of which is connected to the end of the lifting chain,while its short member has a locking latch 01 the purpose of which willbe presently understood.

0 0 indicate oppositely extending lever arms which are pivoted at theirinner ends 0 0', to the leverN on opposite sides of the pivotal bearingof the said lever N, while their outer ends are pivotally jointed to Cshaped arms P P connected to the slide plates Q Q disposed at the outerends of the door as clearly shown in Fig. 1 of the drawings.

To render their operation easy and positive the lever arms 0 have theirstud pivots 0 operating in elongated slots 0 in the plates 0 while theplates Q Q have elongated slots q through which the headed studs (1pass. 1

The outer vertical edges of the plates Q Q normally project slightlybeyond the ends of the door E, whereby to form convenient guide memberswhich, when the door is lowered down from itsinwardly swinging position,engage the guide ways on the sides of the door casing hereinbeforereferred to. When the door is down toits lowest position its lower edgeis disposed to the rear of the bottom strip 0, which serves to close theopening between. the car door and the bottom of the door and therebyeffectually prevent the escape of grain which might otherwise leak outunder the bottom of the said door. I

Each of the plates Q Q has a lock notch Q which notches engage locklugsX in the guide ways, the locking operation being effected as follows:When the door is down, by swinging the unlocking lever arm N in thedirectionindicated by the arrow the lock lug n will slip overanotchedlug O on the armO to which it is held by a spring finger O andas the lever is swunginthe direction statedit willthrough the arms 0 O PP force the plates Q and Q outwardand become locked in the guide ways inthe manner before stated. When it is desired to elevate the door it isonly necessary to slip the spring finger 0 out from the lock ing andthen operate the hand Wheel which in drawing upon the chain first causesthe lever to be brought to the position shown in. dotted lines Fig. 1',thereby automatically unlocking the door from the endguides, after whichit can be readily raised to the position desired by a propermanipulation of the wheel 7L2.

From the. above description taken in connection with the drawings, theadvantages of my improved door will be readily apparent to those skilledin the art to which it appertains. Having thus described my invention,what I claim, and desire to secure by Letters Patent, 1S.-

1. The combination of the car frame hava doorway and a slide doorpivotally supported at its upper end and vertically over such doorwaytripping devices on the car body adapted to engage such door whenelevated and swing it on its pivotal supports and means for elevatingthe door as and for the purpose described.

2. The combination with the car frame having a doorway, a bearing rodheld to move vertically over said doorway, the door body suspendedtherefrom, to swing thereon, said door having projecting members adaptedto engage the upper portion of the doorway as the door bearing rod withthe door is elevated whereby to swing the door inward upon such rod andmeans for elevating the rod, substantially as and for the purposedescribed.

3. The combination with the doorway having roller brackets suspended atthe upper edge thereof, of the vertically movable door supporting rod,the door pivotally supported at its upper end on such rod and havingoutwardly extending curved arms and means for elevating the said rodabove the doorway, whereby the curved arms will engage the said bracketstoswing the door inward on its supporting bar as such bar continues onits upward movement, substantially as and for the purpose described.

4. The combination of the car having a door way, a door movablevertically over said door way and pivotally supported at or near itsupper end whereby it may be tilted, locking devices by which to securethe doorin closed position, lifting mechanism including a chain or cordconnected with said locking mechanism and guides for said chain or cordarranged relatively to the pivotal axis of the door substantially asshown and describedwherehy draft upon said chain may unlock and thenslide the door upward without tilting the same upon its pivotal axissubstantially as set forth.

NAPOLEON ROY.

Witnesses:

THOMAS GELLEY, LAURENT FERLAND.

